Process of producing glycerin and acidylated derivatives of aromatic bases and the product thereof.



' UNITED STATES Patented October 13, 1903.

PATENT OF ICE.

OSCAR LIEBREIOH, OF BERLIN, GERMANY.

. PROCESS OF PRODUCING GLYCERlN AND ACIDYLATED DERIVATIVES OF AROMATIC BASES AND THE PRODUCT THEREOF.

SPECIFICATION forming part of Letters Patent N 0. 741,585, dated October 13, 1903. I

Original application filed June 7, 1901, Serial No. 63,637. No. 154,702.

facturing acidylated derivatives of aromatic bases and anhydrous glycerin in one single operation; and it consists in heating glycerids of fatty acids-the so-called fats or oils with aromatic bases. The aromatic bases for the said purpose are: 1, arLlin; 2, bases of the naphthalin series; 3, aromatic diamins; 4, monoalkoyl derivates of the bases named in Nos. 1 to 3; 5, homologues of the bases named in Nos l to 3 and of the monoalkoyl derivates of same.

In the performance of the invention 1 may operate as follows: I heat the fats-for instance, ox-tallow-with an equiValent weight or, better, with an excess of the aromatic basefor example, anilin-to 2 093 centigrade for twelve to twenty hours; but the conditions may 'b'e'yaried. However, it is to be observed that at a lower temperature the reaction generally requires more time. The heating may be effected in an open or in a closed vessel. When doing so, the acid radicals of the fat leave the molecule of the fat and go to the anilin, while glycerin is produced in anhydrous form, becausein this kind of saponification no water is present. The chemical reactions in this process are to be seen from the following formula:

tristearate anilin hydrous glycerin there is formed an anilid or aromatic amid of fatty acid. Ihe products Divided and this application filed April 28, 1903. Serial (Specimens) produced by this process may be separated from each other by crystallization or by fractional distillation at low pressure. If it is desired to separate theconstituents of the resulting compound by fractional distillation at low pressure, at first the anilin in excess will be distilled at to centigrade. When the compound is further heated, the anhydrous glycerin will be distilled, its boilingpoint being at about 170 centigrade, whereas the boiling-point of the anilids is between 300 and 360 centigrade. When separated,

the anilid of stearic acid is a solid substance The which melts at about 82 centigrade. said reaction of the fats on the aromatic bases may be performed, if desired, in such a manner that instead of the aromatic bases themselves substances are combined with the fats and fatty acids which are adapted to form aromatic bases by reacting on each other. In this way I may use instead of aromatic bases themselves mixtures of salts of the said bases and'of alkali, (not in excess,) for instance. I may use instead of anilin a mixture of equivalent portions of hydrochloric anilin and of quicklime.

The acidylated derivatives of aromatic bases produced in the above-described manner may be used alone or preferably in mixture with fatty acids, fats, or fat-like substances of any origin as a raw material for the manufacture of candles, wax colors, un-

guents, hydrophile salves, 850., because such bodies generally have higher melting-points and are more capable of absorbing Water than the said fatty acids, fats, and fat-like substances themselves.

Having fully described my invention, what I claim is- 1. The process of simultaneously producing glycerin and acidylated derivatives of aromatic bases, consisting in heating glycerids of fatty acids, the so-called fats or oils, with aromatic bases, and separating the products produced thereby, for substantially the purposes set forth.

2. The process'of producing a raw material for candles, Wax colors, salves, unguents,

which consists in heatingaglycerid of a fatty In testimony whereof I have signed this acid with an aromatic base.

3. The process of simultaneouslyproducing glycerin and a raw material for candles, wax colors, salves, nnguents, &c., which consists in heating fats with aromatic bases, and separating the products produced thereby.

specification in the presence of two subscribing witnesses.

OSCAR LIEBREICH. Witnesses:

HENRY l-IAsPER, WILLIAM MAYNER. 

